Muffler cut-out.



G. W. STRYKER. MUFFLER GUT-OUT. APPLICATION FILED 00120, 1910.

1,027,929, Patented May 28,1912.

7 g i .4 22/3 U /3 ll /7 I I v 1 /7 f HI Witnesses: V /3 Inventor.-

UNITED .sTATEs PA NT orrron. A

CHARLES WORRELL Sm rna, or sxaacusn, NEW roan.

I MUFFLER CUT-OUT.

I Specification of Letters Iatent- Patented May 28,1912.

' Application filed October 20, 1910. Seriallto. 58 8,055

' To all whom it may concern Be it known that 1, CHARLES WORRELL STRYKER, of Syracuse, in the county of Onondaga, in the State of New York, have invented newand useful Improvements :in

Mufller Cut-Outs, of which the following, taken in connection with the aocompanym-g drawings, is a full', clear, and exact description. k i

This invention relates to certain improve .ments in muflier cut-outsadapted to be connected to the exhaust pipe of an internal, combustion engine between the engine and a suitabl Inufller for the purpose of discharging he high pressure exhaust directly to the atmosphere or causing the exhaust products to be diverted through the muflfler and thence to the atmosphere under low pressure.

without disconnecting Another object is to provide for a eircum'-- ferential adjustment (1f necessary) of the coupling relativelyto the exhaust pipe upon which it is mounted for the purpose of ac curately adjusting the discharge openin in the coupling with that in the pipe an at the same time permittin such opening to be varied or entirely out o if'desired,

Other objects and uses will be brought out in the following description.

In the. drawings: Figures 1 and 2 arerespectively a top plan and a side elevation of a'portion ofLan exhaust pipe and my improved coupling mounted thereon, portions of the cutout and pipe being broken away in Fig. -'-1, while portions of :the coupling are broken away in Fig. -2. Figs. 3 and 4 are transverse sectional views 'taken respectively on lines 33 and 4-4 Fig. Fig. '5 is a rear elevation of the detached coupling on a smaller scale, showing particularly the interlocking members of the sections.

In illustrating the operation of my invention, I have shown a-' portion of an exhaust pipe .-l, which mayjser've as a con nection between any suitable gas engine and the muffler not shown and is provided in one side with an opening -2 preferably circular. in top plan and of nearly the same diameter as the inner diameter of the pipe so as toafl'ord as large an outlet as possible.

The cut-out comprlses a'sectionalpipe T, the head of which is substantially thegsa'me interior diameter 'as the exterior diameter of theexhaust pipe 1- uponwhich it is,

adapted to be clampe'din a manner hereinafter described and is of greater length. than the diameterof the opening '2-, which it is adapted to inclose in such manner as to bring the branch of the T into register therewith. As shown in the drawings, the .T-coupling comprises, opposite substantially semi-cylindrical sections 3,- and 4, the section --3 being provided with a branch nipple having its inner diameter substantially equal to that of the opening -2 with which the'branch --5 is adapted to registenwhen the cut-'out is ad: justed for use. In order that these sect-ions -3' and '4 may be quickly and posi- 'tively se cured t'o the pipe l, the meeting edges of one side are provided with interlocking shoulders 6- and 7', while the opposite meeting edges are formed with registering radial lugs .or cars -8 and .-9, spaced apart a suflicient distance to allow the sections 3 and 4 to be clamped tightly upon the pipe. The earsof each co -acting pair are provided with registering apertures 10 and -11 for the reception of clamping bolts or screws 12-,

the apertures -10 1n ears 8'" being tlireadedfor engagement with said screws or bolts. The sh0ulders'-6- are formed by recexing. the rear side of the section 3 at -13 a short distance from its upper edge thereby allowing the superposed portions, to project slightly beyond the inner walls of the recesses. are formed upon the lower ends of the pendant ears. or lugs 11, which are integral with the sections and project some distance below thelower edge of the adjacent side thereof, theinnerfaces of'the lugs being formed with grooves 15', for-receiving the shoulders '6, so that when the parts are adjusted for use, the shoulders"7- enter the recesses 13- and interlock with the lower edges of the shoulders thereby holding the corresponding sides of the sections--.3' and 4. against the relative radial displacement and at the sametime, permitting the sections -3 and The shoulders 7' 4 to be readily spread'apart and placed upon or removed from the pipe 1, by.

simply removing the clamping screws A valve or damper 16 is mounted within the branch 5- directly below the opening 2 and is preferably secured to a rock shaft 17-, which is ournaled in tion and for this purpose has one end connected to the crank-arm 18- and its other end to a pendant stud -20. on the section 3 as best seen in Fig. 2. -The movement'of the valve vl6+from its extreme closed positionto its extreme open position is limited by flstop shoulders 22 projecting laterally from the section 3 into the path of movement of the crank arm l8 as best seen in Figs. 1 and What I claim is: j

1. In a muffler cutout, the combination with an exhaust pipe having an opening in one side of a diameter substantially equal to the interior diameter of-the pipe, of a T- coupling fitted to the exhaust pipe and extending at both ends beyond the opening, said coupling formed intwo substantially semi-cylindrical sections, oneof which has abranch-pipe projecting therefrom centrally of its ends and registering with said opening, said branch-carrying section provided adjacent oneledge of its open longitudinal side with recesses 13 terminating in shoul-- ders 6 and at its opposite side with lugs 8 having threaded apertures, the other section provided at one side with ears having lugs 7 to fit in the recesses 13 and engage the shoulders 6 and-at the other side with apertured lugs 9, clamping screws passed through said lugs 9 and engaging in the threaded apertures of the lugs 8,, a rock-'- sh'aft journaled in the branch pipe of said coupling, a damper carried by the rockshaft within the pipe and of a diameter corresponding to the interior diameter of said 'pipe, said rock-shaft having an angularlywith an exhaust pipe having an opening in one sideof a diameter substantially equal to the interior diameter of the pipe, of a T-coupling divided longitudinally to form two" substantially semi-cylindrical sections fitted upon the exhaust pipe and projecting at each end beyond the opening in said pipe,-

means for clamping said -sections upon the 'pipe, a'branchepipe carried by on? of the sections intermediate its ends and gistering with the opening in said pipe, a .rockshaft journaled in the branch pipe and provided at one end with an angularly-extending arm, a damper carried by said rockshaft within the branch pipe and o-fa diameter corresponding to the interior diameter of said pipe, stops carried by the T=coupling to limit the throw of the arm in both directions, a stud carried by the T-coupling,

and a spring connected at oneaend to said stud and at its other end to said arm for normally holding the damper in closed position. y

In witness whereof I have hereunto set my hand on this 21st day of September 1910.

C. VVORRELL STRYKEB. Witnesses? .H. E. CHASE, E. A. SPEAKING. 

